<!-- 登录页 -->
<template>
  <div style="height: 100vh; overflow: hidden;
  background-image: linear-gradient(135deg,#1352F2,#3C82F5)">
    <el-container style="padding: 30px;">
      <el-header>
        <el-row>
          <el-col :span="3">
            <img src="/imgs/login/logo.png" style="height: 50px">
          </el-col>
          <el-col :span="1">
            <img src="/imgs/login/auto.png" style="height: 50px">
          </el-col>
          <el-col :span="1">
            <img src="/imgs/login/verticalLine.png" style="height: 50px">
          </el-col>
          <el-col :span="19">
            <span style="color: #fff; font-weight: bold; font-size: 30px;">智慧车辆运营管理系统</span>
          </el-col>
        </el-row>
      </el-header>
      <el-main>
        <<el-row>
         <el-col :span="16">
           <!-- margin-top: 60px; 元素的上方添加60像素的外边距 -->
           <img src="/imgs/login/bg.png" style="width: 100%; margin-top: 60px;">
         </el-col>
         <el-col :span="8">
           <el-card style="margin-top: 80px;">
             <!-- style="text-align: center;"  文字居中 -->
             <h3 style="text-align: center;">用户登录</h3>
             <el-form label-position="top">
               <el-form-item label="用户名">
                 <el-input placeholder="请输入用户名" v-model="user.username"></el-input>
               </el-form-item>
               <el-form-item label="密码">
                 <el-input placeholder="请输入密码" v-model="user.password" show-password></el-input>
               </el-form-item>
               <el-form-item>
                 <el-button type="primary" style="width: 100%;" @click="login">登录</el-button>
               </el-form-item>
             </el-form>
             <div style="text-align: center;color: #666; font-size: 14px; padding: 10px 0;">
               （体验账号：tom 密码：123456）
             </div>
           </el-card>
         </el-col>
        </el-row>
      </el-main>
    </el-container>
  </div>
</template>

<script setup>
import {ref} from "vue";
import axios from "axios";
import {ElMessage} from "element-plus";
import router from "@/router";

//1.定义对象用来手机登录表单的数据
const user = ref({username:'',password:''});
//2.定义登录方法
const login = () => {
  console.log(user.value);
  //3.利用axios给后端发送登录请求
  axios.post(BASE_URL+'/v1/user/login',user.value)
      .then((response)=>{
        //.then()调用回调函数，在服务器响应后才执行此处代码
        //response是响应对象，我们可以通过response.data得到服务器的响应数据
        console.log(response.data);
        //根据后端JsonResult中的状态码code判断后续应该进行什么操作
        /* response.data是后端响应的JsonResult
        * response.data.data是JsonResult的data值，如：userVO */
        if (response.data.code == 2000){
          //2000-成功-提示成功-跳转用户管理页
          ElMessage.success('登陆成功！');
          //console.log(response.data.data);
          //console.log(JSON.stringify(response.data.data));
          router.push('/');
          /* localStorage存储的是字符串类型的键值对 */
          //登陆成功后，将后端返回的userVO存入localStorage中，取的时候也用user这个名字取
          localStorage.setItem('user',JSON.stringify(response.data.data));
        }else {
          //其他-提示失败-清空表单
          ElMessage.error(response.data.msg);
          user.value = {username:'',password: ''};
        }
      })
}
</script>

<style scoped>

</style>